Aug 02 04:38:51.079 INFO checking matrixmultiply_mt-0.1.6 against 1.27.2 for lazy_static-1
Aug 02 04:38:51.079 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:38:51.079 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:38:51.079 INFO running `"docker" "create" "-v" "/tmp/crater.uacNDMSKt2ab:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 04:38:51.319 INFO blam! fc51307871bf3439a02d6c78eaff7b17d890590d4d55951f9952cadcd0fb4d43
Aug 02 04:38:51.321 INFO running `"docker" "start" "-a" "fc51307871bf3439a02d6c78eaff7b17d890590d4d55951f9952cadcd0fb4d43"`
Aug 02 04:38:52.268 INFO kablam!    Compiling matrixmultiply_mt v0.1.6 (file:///source)
Aug 02 04:38:52.270 INFO kablam!     Checking typenum_loops v0.3.0
Aug 02 04:38:52.270 INFO kablam!     Checking parking_lot v0.4.8
Aug 02 04:38:59.219 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:38:59.219 INFO kablam!  --> benches/bench1.rs:1:1
Aug 02 04:38:59.219 INFO kablam!   |
Aug 02 04:38:59.219 INFO kablam! 1 | #![feature(test)]
Aug 02 04:38:59.219 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:38:59.219 INFO kablam! 
Aug 02 04:38:59.222 INFO kablam! error: aborting due to previous error
Aug 02 04:38:59.222 INFO kablam! 
Aug 02 04:38:59.222 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:38:59.232 INFO kablam! error: Could not compile `matrixmultiply_mt`.
Aug 02 04:38:59.232 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:38:59.544 INFO kablam! error: build failed
Aug 02 04:38:59.546 INFO kablam! su: No module specific data is present
Aug 02 04:39:00.081 INFO running `"docker" "rm" "-f" "fc51307871bf3439a02d6c78eaff7b17d890590d4d55951f9952cadcd0fb4d43"`
Aug 02 04:39:00.244 INFO blam! fc51307871bf3439a02d6c78eaff7b17d890590d4d55951f9952cadcd0fb4d43